/*
 * Copyright (c) 2018, Systems Group, ETH Zurich
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef FPGA_H
#define FPGA_H

#include "XDMAController.h"
#include "MemoryManager.h"



namespace fpga {

class XDMAController;

class XDMA {

public:
   static void setNodeId(int nodeId);
   static void initializeMemory(int has_bypass,int is_gpu_tlb);
   static void clear();
   static void* allocate(uint64_t size);
   static void free(void * memory);
   
   static XDMAController* getController(int has_bypass,int is_gpu_tlb) { 
      setNodeId(0);
      initializeMemory(has_bypass,is_gpu_tlb);
      return controller; 
    }
   
protected:
   static XDMAController* controller;
   static MemoryManager*  mm;

private:
   static int      nodeId;
   static int      fd;
   static int      byfd;
   static int      hfd;
   static void*    huge_base;
   static int	   bypass_enable;
   
};

} /* namespace fpga */

#endif
